Based on Pouplar MangaTargeting Women in Their 20's to 40's
Both Are Having Affairs. Revenge, Suspicion, Romance Ensue

Kaori and Takuya are a married couple who get along well. Even so, Kaori is dissatisfied with one thing about her husband: even though they are undergoing a fertility treatment, he keeps avoiding sleeping with her. Kaori has been cheerfully making up her mind not to let people around her know about this. But one day, in a conversation with her best friend, she learns about her husband's secret social media account. From that day on, Kaori's peaceful daily life is disrupted...